Camera: Make finalizeOutputConfigurations more resilient

There could be race in application where finalizeOutputconfigurations
doesn't include any new surface. Do not fail in this case.

Test: CameraStressTest#testBackCameraSwitchPreview
Bug: 36811459
Bug: 35137641
Change-Id: Ic185e6d8bfcb8af5b81a33fbbd2fd4e49cc647ce